TElDTLSServerFactory is designed to protect TElDTLSServer from DoS (Denial-of-Service) attacks.

Description

    TElDTLSServerFactory waits for incoming datagrams. When client sends its ClientHello message, it is processed in the ProcessRequest method. TElDTLSServerFactory generates a cookie using a unique ID of the incoming connection. This cookie is sent back to the client, which should respond with its ClientHello message and the cookie added. If the received cookie is valid, TElDTLSServerFactory creates a DTLS server and fires OnServerCreated event.
    Such verification mechanism provides defence against DoS attacks from spoofed IP addresses, however it gives no protection against DoS attacks mounted from valid IP addresses.

Methods

• ProcessRequest

Events

• OnSend
• OnServerCreated

Declared in

.NET:

• Namespace: SBDTLSServer
• Assembly: SecureBlackbox.SSLServer

• Unit: SBDTLSServer

Licensing

To use the component in development and distribution of your projects, you need to purchase one of the licenses:

.NET: SSLBlackbox client-server OR SecureBlackbox Transports OR SecureBlackbox Professional

VCL: SSLBlackbox client-server OR SecureBlackbox Transports OR SecureBlackbox Professional

ActiveX/DLL: Not implemented